Disability is no longer an obstacle for a person to achieve high goals and good status in the present world. Now a day all the limitations due to disability is being satisfied with the influence of robotics. Mechanical supporting limps are quite common and it has helped a lot of disables to help them to forget their disabilities and move forward in their life.

Our project is a new venture to design a robotic prosthetic leg for the disabled that can help them in a more convenient way to overcome their disabilities. We are mainly focusing on fulfilling the needs of a person who lost his/her leg partially.

All the human posters like sitting, standing, walking etc. is being analyzed instantly from the other leg with the help of a goniometry to measure the angle of the knee and a ‘smart shoe’ which uses a flexi force sensor to measure the pressure and velocity under the feet instantly.

The surgical needle placement is usually performed using straight-line needle trajectories, due to the absence of feedback and knowledge of needle steering mechanics that would make trajectory compensation feasible. If it is determined that a needle fails to reach its goal location, due to tissue or needle motion, then it must be retracted and re-inserted. Several attempts may be required before success is achieved. The needle insertion models can be developed in this research to study the needle motion-planning problem. The concept of needle manipulability or “steerability” can be introduced in order to consider closed-loop needle trajectory compensation, as well as trajectory planning and optimization. This is used in conjunction with a motion-planning algorithm to automatically plan feasible needle trajectories in soft tissue environments. Contributions to these challenges will be of interest to the medical scientific communities, biomedical engineering and hospital.